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U.S. Highway 395 over Roadside Drainage Ditch

Mono County, California · rated Good in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

U.S. Highway 395 over Roadside Drainage Ditch in Mono County, California, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
It was built in 1989, making it 36 years old at the 2025 inventory.
It carries about 7,450 vehicles a day (traffic count year 2019).
Its listed owner is the state highway agency.
It is one of 35 of the 56 inventoried bridges in Mono County rated good (62.5%); 3 (5.4%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings

Component	Rating (2025)	FHWA scale meaning
Culvert	7	Good condition


Structure	Continuous concrete culvert
Length	about 32 ft
Location	09-mno-395-116.34
NBI structure number	47 0056
Condition class	Good

Source: FHWA National Bridge Inventory, 2025 data as reported by the California department of transportation.

Bridge	Built	Vehicles/day	Condition
U.S. Highway 395 over Crooked Creek	1970	13,100	Fair
US Highway 395 SB over State Route 203	1969	9,500	Fair
US Highway 395 SB over Mammoth Creek	1969	8,450	Good
US Highway 395 NB over Mammoth Creek	1969	7,000	Good
U.S. Highway 395 over West Walker River	1987	6,950	Good
U.S. Highway 395 over East Walker River	1961	6,950	Good